Basement door



May 22, 192s. a

- O. W. MIELENZ `BASEMENT DOOR 3 Sheets-Sheet `l Filed gan. 7, 1926 l 20 2 r19,27 a@ May'zz, 192s. l 1,670,899 O. W. MIELENZ BASEMENT DOOR iii n May 22, 192s.

O. W. MIELENZ BASEMENT DOOR 3 Sheets-Sheet 3 Filed Jan. 7, 1926 Patented May 22, 192s.

UNITI-insures oTTo W. MIELENZ, or PHILADELPHTA, 1 ENNsYLvAN1L l Lnassaui:ENT noon. f

y Application ll'ed f anuary lThe present invention relates V'to a basement orcellar door and more particularly to thel type oruse on sidewalks, and aims to kprovide a novel and improved device of this character which when in a closed osition will lie 'flush with the sidewalkor door,

thus l"eliminating upstanding obstruction.

and thel vdanger of anyone stumbling while Walking thereover to a. great extent. e

A Another `object of the invention `is` 'the provision'of means for attaching the doors tothe frame so that all-hinge connections are arranged under the doors and Constructed in such a manner as to hold the doors'v in' an opened position when desired.

' It is also a`n` object of the invention to provide a ydeviceV of the above indicated character, which is simple and substantial in construction, which can,y be manufactured economically, and which will be thoroughly efiCient and practical in use. y

With the vforegoing a'ndkotherI 'objects'in View, which will h'eapparent,as the description proceeds; the invention resides in 'the construction and arrangement" of parts` as hereinafterdescribed'and claimed, it being understood that ehangescan be made within the scope of whatl isv claimed, without departing from 'the'fspirit lof the invention. lvThe invention is illustrated in the accompanyi'ng drawings, wherein:

Figure 1 is a plan viewof myimproved device, i

Figure tion taken'on line y2`-'-2 of Figure 1,

Figure B is a'fragmentary Vplanfshowing I 'the door,removed,l lFiguret isa view similar to Figure 2 but v4 showingthe' door-in an open position, j f "Figure 5 is a" perspective view of one `of the corner reinforcing members, 'e

Figure k6 is a,fragmentary'vertical section taken on line 6--56 of Figure 7 showing the frame of the doonconstructed of channel iron, ,n

YFigure is ya"fragmentary top plan of the form of'my invention illustrated in Figlfnre 6, showing the door removed,'and

FigureA 8 is a vertical section takenon line 8-8 of Figure?,l but showing the doorl in. araised position.` y

In carry-ing out Vvthe invention, the numerali10 designates a frame, which is constructed of angle iron' and arranged to exv 2iis afffragmentar'y*vertical sec.

7, `1926. zs'erxai no. 79,1352.4

Vtend around'an opening in a floor or sidewalk. On the upper angled portions of 'the angle irons :are secured, vby means of rivets orthe like, plates 11, whichare'of less width than the uppery angled portions of the angle irons so thatfthe inner edges thereof terminate short of the inner edges rof the angle iron forproviding seats yor shoulders 12 which the edges of the doors 13rest upon. The corners of the angle irons are attached together and reinforced ,by angled cornerl members 14, which are secured to the angle irons 10 in any well known manner, such as riveting or the like. The angled members 14 yhave relatively short side portions 15 and relatively long side portions 16, each of said relatively long side portions 16 :being provided withan oiilset,"upstanding lug 17, said lugs 17 beingl offset so` as to extend inwardly and awayfroin the angled members 10 Athe sidey portions 16 are secured to. Pivotally connected tothe offset, upstanding lug v17-ateach corner ofthe frame, by

'connected' to depending brackets 20, as at y l21, carried b the doorsections.

f To each o the side portions 16 of each corner bracket is pivotally connected, as at 21, intermediate the ends of .said sideportions, one end of anothervlevery or bar 22. The -opposite ends of the levers or bars 22 have pins 23 provided thereon which are slidabl mounted in slots 24 arranged in depending brackets 25 carried by the ydoor sections. The levers or bars l22 arey positioned adjacent theside portions 16 of the corner vangled members 14 and arranged between the levers 19 and saidside portions 16 so as Ito form a compact structure;y On eachof theleversor ybars 22 is arranged a pin 26 which is lslidaloly -mounted in a slot 27 provided in each of the levers 19.

yBy referring to Figure 4, itwillbe notedl resting on the shoulders orseats formed on the angled members 10.-

The door sections 13 are arranged so that each door covers` one-half of the opening 13 inlopen position, with edges of the doors and each door is pivotally connected at two corners of theframe. The` doorsmay be locked in a closed position by means ft-a sliding bolt 28 carried by one of the door sections for engagement into the side of the frame and a lock 29 for locking the twov doors together. As usual, a cross or reinforcing member 30 is carried by one/door" and has a longitudinal portion thereof offset for providing a shoulder' or rest for the.

, other door. When my improved device is Cil arranged in a sidewalk or., Hoor, the side.` walk or flooring is brought ,flush with the top-surface of the plates or strips 11, which in turn are ilusli with the doors, thus `presenting'. a smooth and unobstructed surface.

In Figures G, 7 and 8 of the official draWr ings, I have shown a channel iron frame, such as designated by the numeral 31, said channel. iron havingy the ends thereof received in corner channeled members 31'a and secured thereto, as at 3l". The outer side portions of the corner channel members 81* extend slightly above the, side portions of the channel irons 31,. substantially tlie thickness of the doors `13, and lie flushwith the 'sidewalk or iioor, so that the .doors 13 resting upon the upper kedges ofy lthe channel irons 31 will lie iiush with the sidewalk or floor and the outer side ofthe corner channel members 3'1". yIt will be noted that by Vconstrueting the frame of the device of mechanisms for-connecting the ydoors 13 to the frame are positioned in the channel irons vand not in the doorway so as to form a compact structure and eliminatefdanger Aof breaking said mechanisms when raising or lowering objects through the doorway.`

`When the meeting edges or sides of the doors yare raised upwardly, the levers 22 are swung on their pivots 21, causing the pins 26 carried by said levers 22 to raise the levers 19 'on their pivots 18, as said pins 26 vmove in the slots 27 of the levers 19, thus slightly raising the edges of the doors op-l l posite to those that meet. Upon continual raising of the meeting edges of` the doors,

said doors may be swung to a position as iny dicated in Figure f of the official drawings, that is, until the ypins 23 engage the ends of the slots 24: in the brackets 275, at which time .-.the edges of the doors 'which have been slightly raised are brought back` to engage the shoulder 12 formed on the frame, as

also clearly shown in Figure 4 of the official drawings, which will hold the doors in raised or openposition. 1, f

IIaving thus described my invention, what I claim as new is: p

1.In combinationwitha door opening havinga frame arranged therearound, of a door, a pair of levers arranged at two cor` ners of said frame, one of said levers of each pair having one end thereof pivotally connected to said door while the other.. lever has one end thereof pivotally connected to said frame, means for slidably ,connecting said levers together, means slidably connecting said levers pivotally 'connectedto said frameY to said door at the ends thereof op- 'posite to that connected to said frame, and means pivotally connecting the ends of said levers pivotally connected to said door to said frame at theirother ends.

2. In combination with a vdoorv opening having a frame y arranged thereabout, la ypair of doors 'arranged for closing said opening and arranged with side edgesthereofl engaging each other, a pair of levers arranged at each corner of said frame, one of each pairhaving one end thereof pivotally connected to yadoor while the opposite end thereof is pivotally connected to said frame, means for pivotally. connecting the other of said levers to said frame at one lend thereof and slidably connecting the other ends of said other levers tor said doors, and means sl'idably connecting `said levers together. j

3. In combination with a 'door opening havinga frame arranged thereabout, of a door, `a bracket carried by said'door adjacent each end thereof, bracketscarried by said frame, levers having the opposite ends pivotally connected in said brackets carried by saidv frame, and Idoor and having'slots arranged therein, other` brackets carried by said door and having slots therein and spaced ,from said firstmentioned brackets, other `levers each having one end thereof pivotally connected to lsaidframe adjacent said first mentioned brackets carriedby said door, and a pair of pinscarriedbyi each of said second mentioned'leversandbeing slidably received in said slots in saidl iir'st mentioned levers and'in said slots of Vsaid last mentioned brackets vcarried bysaid door.

4. In combination with a dooropening having a frame arranged therearound, of a door, a pair of levers arranged at eachside of said doors and `adjacent cornersof said frame, said levers of eachV pair being arranged to Llie side by sideV when the "door is in a closed position, means for piv'ot'allyv connecting one end of one lever of each pairl to said door, means for pivotally connecting the opposite ends of said'y levers'pivotally fconnected to said door tosaid'frame, said levers ybeing pivotally connected to said door and frame having vslots "arranged therein,

means for pivotally connecting the other of said levers to said frame, pins carried by the other of said levers and received in the slots of said vlevers pivotally connected to said door and frame, and means for slidably connecting said levers carrying said pins to said door.

5. In combination with a door opening having a frame arranged therearound, of corner brackets secured to said frame and each having an offset, upstanding lug, a pair of doors arranged for closing said opening and having the marginal edges thereof resting on said frame or in engagement with each other when the doors are in a closed position, a pair of levers arrangedat each corner of said frame, oneof said levers of each pair having one end thereof pivotally connected to one of said doors while the opposite end thereof is pivotally connected to one oi said oi'set, upstanding lugs, said levers pivotally connected 'to said lugs and doors having slots arranged therein, the other of said levers being pivotally connected at one end to said trame whilethe opposite end thereof is slidably connected to said doors, and pins carried by said levers slid-ably connected to said doors for engaging in said slots in said'tirst mentioned levers for slidably connecting said levers of'- each pair together.

6, In combination with a door opening having a frame arranged thereabout, of strips secured to said frame and having the inner edges thereof sli htly spaced from the inner edges of said rame, angled corner brackets secured to said frame at the corners thereof, doors arranged for closing said opening and having the marginal edges thereof in engagement with said strips and resting upon said frame, said doors being strips so as to lie flush therewith, and levers pivotally connected to said doors and frame for imparting a raising motion of the doors to an elevation above said stripsl prior to the swinging of said doors to open positions.

7. In combination with a door opening having a frame arranged thereabout, of doors arranged for closing said opening, said frame having seat portions arranged therearound for receiving marginal edges of said doors so that the upper surface of said doors lie flush with Said frame, levers pivotally connected to said doors and to said frame for imparting a raising of the entire doors as the same are swung to open position, said levers being so arranged that edges of said doorswill rest in the seatsv formed in said frame for holding said doors in open position.

In testimony whereof, I have afixed my signature.

OTTO W. MIELENZ.

-of substantially the same thickness as said 

